Lever-actuating mechanism



' 1.644 763 Oct 1.11927' J. M. WADDELL LEVER ACTUATING MECHANISM Filed July 10,'1924 2 Sheets-Sheet l l l Oct. 11, 1927.

J. M. WADDELL LEVER ACTUATING lvusoHANIswkv Filed July 1o, 1924 2 sheets-sheet 2 0n T wAomsLLfxfcu role of Emre of Jam/1f! Mwaggmww,

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fr. r if@ JOHN M. wAnnnLL, Dncnnsnn, LATE or snnnnrrnnnonro, nv nannte. wannnnn,

executes.; OF GREENBELP, 0.1110? LnvEnfAorunTrne' iunonanrsisr.

Original application filed Aprll, 1922, Serial No. 552,112.

Divided and this application tiled July 1Q,

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f 19H24. "Serial No. 725,291. w.

rlhis invention relates to lever mechanisms such as may be employed in raising the covers of display cases and in various other' ways.

An object of the invention is to provide a lever mechanism that is simple and efficient this character which requires a mi imum ot V effort to operate.

Thesev and other objects are attained by the 'means described herein and disclosed in the accompanying drawings, in which:

Fig. 1 is a'rear elevational view oi a display case having embodied therein a lever mechanism ot the invention.

2 is across sectional view on line 2-2 of Fig'. lshowing the lever mechanism.

Fig. 3'is an enlarged Jfragnier'ital detail of the operating means'tor the lever mechanism of my invention. l l f 1 ln order to set forth the lever mechanism or the invention -in a practical andloperative form, it will be described as being embodied in adisplay case s uch as is seti'orth in the cofpending application, Serial No. 552.112. tiled April 13 1922, and of which application this is a divisional application.

A display case9` which'may comprise a base or lower section 10 upon?.` which is mounted an upper case 11 consisting of a glass panel through which the goods displayedf therein may be seen. The frame of the case is made by any suitable material such as luniberor steel, and the construction may be that usually employed for making cases of this type. Thecase may have sides 12 vand 13 between which suitablepanels such as 14 and 1 5 may extend, thereby providingk a frontand back for the case.: A

front bar or rail 16 extends between the sides 12 and 13 and has: formed on it a ledge 17 upon which the forward end of Va top 18 may engage. The front portion of a case woul'dbe preferablyl provided with aglass panel 19. The rear rend of the top 18 is hingedly mountedv upon a cross bar52O eX- tending' between; the ends. The top 18` is so mounted that the said forward end, which normally lies upon vthe ledgeA .-17 may be swung upwardly about the. pivotal mounting 2l of said top. J'When the topfor lid- -1-8 is in its normal position, it is inclinedv downwardly` trom'the bar 2O to the rail* 16,

and the 'engagement ofthe loweredge or said end otthe top Ion the rail together with thel engagement of theen'dsy of the top `upon the sides 12 and 13 of the case, effects.y aclosure fora display chamber 210. The tjop may be Eprovided :with a glassY panel 22; l/Vares to be displayed,"maybe placed within the'chamber 22,: either upon shelving or. in4 containers securedito cross bars 23 extending longitudinally or the case. v In lsof` far as.`

relates to this invention?, the' exact'structure of. the case and the manner yor'.displaj'ying the wares therein, Vwouldbe governedfslolely. by'choice; @Y

The leverv mechanism of the invention is adapted tok raise and lower the lid .18,1andi maybe accomplished only by an attendant who would standwatthef rear or the-case-- The Vlid 18 is actuated about its pivotalV mounting by means of al handle 38, the oppositeends or which are: mounted upon bars 39, secured' by means or pivots 4);upony rods 41, which rods are lpivlotally mounte'clintermediatetheir ends, updnthe sid'esof the case.` 'lhe pivotal: mounting ofthe rods 4'1 is preferably effected lby means olii bradkets 42 mounted. upon the ends oithe case, and carrying pivots 43 supporting th'e :rods 41.. The 'brackets 42j are Vdisposed within'ethe chamber 210, and the rods 41v eirtend'through slots 44 inthe-'rear of theca'se. 'Thehand'l'e, and bars 39 are disposed'y at "the rear of the case and eXteriorly thereto.` lThe outeriend. of the rod. 41l carriesa pin45 which 'extends into and-invlarge perforation 46-in the bar 39. Thisarranigement isresortedto solel-ly to limit the extentftofwhich the bar-39vmay move about its pivoty 40'.: ASecnd .pin14I mounted on the iouter end of'ftheyrd41 is disposed in.l such position thatl normally? when the parts'V lare in their 'normal' position asjfshow'n in Fig. 2,l theipint47eisf disposed above thekuppe'r .end of ar-spring`r 481e The lower end of" the bar. 39has around: -nosegf49 formed :on it, 'which` engages the. Aupper .f and tree end ofthe springff48fffThe parte'. bea-r suchrelation that when the handle is movedv or pressed-"2downwardly?-eto 4the vposition shown in dotted-lines inFig. 2,l thev nose 49 on the barwill move the upper'einde-polithe, sprang/48. from. belowl the pin 417i.y This-arf Lerares,

rod 41 may be moved downwardly.

rangement of parts is in effect a lock precluding locking of the top 18, by any other means than the handle 88. A spring has one of its ends secured upon the frame of the casing, and has its other end upon the rod 41 intermediate the pivotal mounting 48V of the exterior end of said rod. A linl; 51 has its lower end pivotally mounted upon the inner end of the rod 41, and has its upper end pivotally mounted upon a'suitable pivot.

52, carried by the bracket 58, which bracket is mounted on the inner or lower surface of the lid 18. Referring to Fig. 2, and in view of the foregoing explanation, it will be apparent that by exerting a downward pressure upon the handle 88, so as to cause the handle 38to assume the position shown in dotted lines, the spring 88 is moved below the spring 47 whereby the outer end of the rlhis movement of the rod is about the pivotal mounting 43, wherefore the upward movement of the inner end of the rod 41 is transmitted through the link 51 to the lijd 18, thereby actuating the lid about its pivotal .mounting 21, and thus raising the same to the position shown in part in dotted lines. When the handle is released, the weight of thelid 18, causes the lid to move toits closed position, against the action of the spring 50. The resistance of the spring 50 to the lowering of the lid 18 is augmented by the tendency of the lid in its downward movement to compress the atmosphere in the chamber 210, this serving to cushion the engagement of the lid upon the rail 16.

In order to be able to lock the lid in its lower position, there is provided an arm 54 which is pivotallyV mounted intermediate its ends on a suitable mounting or pivot 55 mounted on the end of the case. The upper end of the arm is notched, whereby a finger 56 is formed, thel finger being adapted to enave a Catch 57 mounted u on the inner switch of the lid 18. An arm such as 54 is mounted at each end of a compartment, and extends into the lower section 10, where the ends of said arms are mounted upon a bar 60. A lock 6l mounted on the lower side of the bar 60 is pivotally connected to the forwardend of a rod 62, the rear end of which rod is disposed adjacent the back of the lower portion of the casing. A spring 63 has one of its ends mounted upon the casing, and its other end hooked to a perforation 64 near the end of the rod 62. A suitable bolt mechanism 66 may be supplied upon 65, 67 and 68 in the rear of the case provide access to the locking mechanism 66. Thus, when the finger 56 is in the position shown in solid lines in Fig. 2, and the doors 65, 67 and 68 are locked, the entire case is sealed against unauthorized opening. The operation is as follows: n

The locking of the lever mechanism dotted lines in F ig. 2. The movement of the handle about its pivot 40 is limited by the engagement of the pin 45 upon the wall of the perfo-ration 46, diametrically opposed from that which said pin engages as shown in F ig. 2. At this time, the bar 49 also engages the spring 47 wherefore the continued downward pressure upon the handle 38 carries the outer end of the rod 41 downwardly about the pivotal mounting 43, thereby releasing the spring 50 of part of the strain to which it is subjected, andat the same time lifting the lid 18 by means of the link 5l. Then the lid 18 is to be lowered, the rod 41 and bar 39 are permitted to resume their normal positions. Vhen the handle 88 is released, the spring 48 riding against the nose 49' moves the bar 89 to the position shown in l? 2, and the upper end of the spring 48 assumes a position below the pin 47, thereby precluding the lifting of the lid 18 from the front or side of the case. A pin 70 is em ployed to Vlimit the movement of the arm 54.

lVhat I claim is:

1. ln a lever actuating and controlling mechanism, the combination of a pivotally mounted lever, a perforatedbar pivotally mounted on the end of the lever, a pair of pins on the lever, one pinl extending into the perforation in the bar, the other pin laying in the path of the bar about its pivotal mounting, the pivotal mountings and the pins bearing a relation such that both pins may engage the bar at the same time, a spring adapted to lie normally in the path of thesecond mentioned pin and to preclude movement of the lever about its pivotal mounting, and a nose on the bar for engaging the spring, and moving the spring out of the path of the second mentioned pin prior to the engagement of the bar upon the second mentioned pin. l i

2,` In a lever actuating and controlling mechanism, the combination of a pivotally mounted lever, a perforated bar pivotally mounted on one end of the lever, a pair of pins on the lever, one pin extending into the perforation in the bar, the other pin laying in the path of the bar about its pivotal mounting, the pivotal mountings and the pms bearing a relation such that both pills The lid 18 llou lla?

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may engage the bar at the same time, a Spring. a lug on the spring vadapted to lie normally in the path ofthe second mentioned pin, and to preclude movement of the lever about its pivotal mounting, and a nose on the bar for engaging the spring, and moving said spring and the lug out of the path of the second mentioned pin prior to the engagement of the bar upon the second mentioned pin.

3, In a device orp the class described the combination of a pivotally mounted lever, a movable abutment normally locking the lever against movement and a control bar pivotally mount-ed on the lever and having limited pivotal movement on said lever for abutting and removing` the movable abutment from the path of Jthe lever, further movement oii the bar serving to move the lever and bar as a unit about the pivotal mounting oi' the lever.

4. In a device of the class described the combination of a pivotally mounted lever, a pin on the lever, locking means normally disposed in the path of the pin, and a bar pivotally mounted on the lever and adapted for limited pivot-al movement thereon for removing the locking means from the path of the pin, further movement of the bar serving to bring said bar into abutment With the f' pin and causing the bar to effect movementwith the lever.

5,. In a lever actuating and control mechanism the combination of a pivotally mounted lever, a pin on the lever, a locking means e normally disposed in the path of the pin and precludng movement oft-he lever, and an actuating bar pivotally mounted intermediate its ends on the lever and adapted for initial independent pivotal movement to re L" DEAN T. VADDELL, 2)/ the estate of Joh/n M. Wad- Emccutm' dell., deems@ 

